P1450 on Mazda

Fuel tank vacuum not bleeding off (Ford, Lincoln, Mazda)

Severity: Monitor

Most Ford and Mazda bulletins for P1450 describe only a check engine light, a slow fill or an inaccurate fuel gauge, so you can usually keep driving while you book a check.

It gets more serious if:

  • Inspect soon: Get it checked soon if the engine is hard to start, will not start, runs rough or loses speed after refuelling. Ford found this with P1450 on some 2013–2014 Escape, Fusion and MKZ, and a purge valve stuck open on the 2012–2018 Focus 2.0L was recalled because tank vacuum could cause stalling.

Source: how we rate severity

This page covers only what differs on Mazda. For what P1450 means, the ranked causes and the test order, see the P1450 guide.

What's different on Mazda

Mazda

  • 01-012-14-2908AStatus unverified

    MIL with DTC P1450:00

    2009–2013mazda6 · issued · NHTSA 10098141

    Purge valve modified to stop P1450:00, unable to bleed up fuel tank vacuum.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

Sources and review

  1. MIL with DTC P1450:00 (bulletin 01-012-14-2908A) — Mazda North American Operations / NHTSA ,
  2. 1.0L EcoBoost: illuminated MIL with DTC P1450, built on or before 10/19/2015 (bulletin 16-0055) — Ford Motor Company / NHTSA ,
  3. Slow fill and/or MIL with EVAP codes (bulletin TSB 21-2106) — Ford Motor Company / NHTSA ,
  4. Incorrect fuel gauge indication with EVAP and catalyst codes (bulletin 15-0034) — Ford Motor Company / NHTSA ,
Last reviewed
Written by
Saurabh K.
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